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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Mo, J.-H. Fowlkes, J.B. Robinson, A.L. Carson, P.L. |
| Copyright Year | 1990 |
| Description | Author affiliation: Michigan Univ., Ann Arbor, MI, USA (Mo, J.-H.; Fowlkes, J.B.; Robinson, A.L.; Carson, P.L.) |
| Abstract | Three linear arrays on dielectric diaphragms have been made: (1) solid substrate (SS), (2) a single large diaphragm window (LW) underneath the entire array, and (3) a small diaphragm window (SW) for each array element. The laterally-dependent response for each array has been measured, with the SW array having the best interelement isolation. To quantify crosstalk and fringe field effects, each array's angular response was measured in the far field of an unfocused source transducer which generates a relatively wideband acoustic pulse. Fast Fourier transform analysis has been performed on the measured data to obtain each array's directivity patterns at various frequencies, which in turn have been fit to a well-established crosstalk model. Four crosstalk-related parameters have been extracted from curve fitting. Their values show that the array with the SW structure has the least electrical and acoustical crosstalk and fringe field effects. |
| Starting Page | 323 |
| Ending Page | 326 |
| File Size | 349392 |
| Page Count | 4 |
| File Format | |
| DOI | 10.1109/ULTSYM.1990.171378 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 1990-12-04 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Crosstalk Acoustic measurements Dielectric substrates Solids Dielectric measurements Acoustic arrays Pulse measurements Acoustic transducers Pulse generation Wideband |
| Content Type | Text |
| Resource Type | Article |
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